Finding Initial Value in Slope

A strong cold front blew through during the night.  The temperature outside began to drop rapidly.  The graph shows the temperature at each hour after the cold front blew through.  What is the initial value of the graph?

• 80 degrees

• 0 degrees

• 40 degrees

• 85 degrees

Some scientists tracked how far cheetahs traveled throughout the day. The graph shows how far one cheetah went for each hour traveled. What is the initial value of the following graph?

• 80 miles

• 0 miles

• 8 miles

• 320 miles

Sam went on a raod trip. The graph shows how many gallons of gas are in his tank and how far he had driven. What is the initial value of the graph?

• 15 gallons

• 0 gallons

• 200 gallons

• 1 gallon

What is another name for rate of change?

• y-intercept

• x-intercept

• slope

• speed

What is the initial value of the linear equation y = 3x + 5

• 3

• (5, 0)

• 3/5

• (0, 5)

Vinhs pays a convenience fee when he reserves movie tickets on his cell phone. The app shows him the total cost of his purchase for different numbers of tickets.

What is the initial value?

Mathematical Equivalence

ON

What is the initial value?

• 0 ounces

• 2 ounces

• 2.6 ounces

• 5.2 ounces

What is the 3rd step when finding the slope from a table?

• Find the INITIAL VALUE

• Find the pattern in the x-values (change in x)

• Find the pattern in the y-values (change in y)

Constant rate of change is the same thing as...

• slope

• y-intercept

What's the initial value of the equation y = 2x + 4

• 4

• -4

• 2

• 2x